writable.writableLength

• 类型:<number>

此属性包含队列中准备写入的字节数(或对象数)。该值提供有关 highWaterMark 状态的内部监控数据。

🌐 This property contains the number of bytes (or objects) in the queue ready to be written. The value provides introspection data regarding the status of the highWaterMark.